Separating championships/races into categories/tags

[Andreas]

As Driver Database has grown a bit over the years (from just being Formula 1 and Formula 3000 at the beginning in 2004) some lists have grown to extreme proportions. As some championships race more than others (sprint cars come to mind) we will soon see the top lists completely covered by drivers from very few categories. Therefor it's time to bunch championships together under different categories, as it will open up a few more possibilities on the website.

Here's a few categories (one championship can have multiple categories / tags) from the top of my head, please feel free to reply with more:

Single seater
Sportscars / Prototypes
GT
Touring cars / Stock cars
Sprint cars
Endurance

we can also add the types of tracks, like:
Ovals
Dirt
etc.